package com.bite.book.controller;

import com.bite.book.constant.Constants;
import com.bite.book.enums.BookStatusEnum;
import com.bite.book.model.BookInfo;
import com.bite.book.model.PageRequest;
import com.bite.book.model.PageResponse;
import com.bite.book.model.Result;
import com.bite.book.service.BookService;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpSession;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@Slf4j
@RequestMapping("/book")
@RestController
public class BookController {
    @Autowired
    private BookService bookService;

    @RequestMapping(value = "/addBook", produces = "application/json")
    public String addBook(BookInfo bookInfo){
        log.info("添加图书, bookInfo:{}", bookInfo);
        //1. 参数校验
        if (!StringUtils.hasLength(bookInfo.getBookName())
                || !StringUtils.hasLength(bookInfo.getAuthor())
                || bookInfo.getCount()==null
                || bookInfo.getPrice()==null
                || !StringUtils.hasLength(bookInfo.getPublish())
        ){
            return "参数不合法, 请重新检查";
        }
        try {
            //2. 插入数据
            Integer result = bookService.insertBook(bookInfo);
            if (result==1){
                return "";
            }
        }catch (Exception e){
            log.error("数据插入发生异常, e:", e);
        }
        return "数据插入失败, 请联系管理员";
    }
    /**
     * 查询图书信息(翻页使用)
     */
    @RequestMapping("/getListByPage")
    public Result<PageResponse<BookInfo>> getListByPage(PageRequest pageRequest, HttpServletRequest request){
        log.info("获取图书列表, pageRequest: {}", pageRequest);
//        HttpSession session = request.getSession(false);
//        if (session==null || session.getAttribute(Constants.SESSION_USER_KEY)==null ||
//                !StringUtils.hasLength((String)session.getAttribute(Constants.SESSION_USER_KEY))){
//            //用户未登录
//            return Result.unlogin();
//        }
        //参数校验省略
        PageResponse<BookInfo> bookInfoPageResponse = new PageResponse<>();
        try {
            bookInfoPageResponse = bookService.getListByPage(pageRequest);
        }catch (Exception e){
            log.error("获取图书列表失败");
            return Result.fail();
        }

        return Result.success(bookInfoPageResponse);
    }

    @RequestMapping("/queryBookById")
    public BookInfo queryBookById(Integer bookId){
        long start = System.currentTimeMillis();
        //参数校验, 不能为null, 不能<=0...省略
        //加try catch...
        BookInfo bookInfo = bookService.queryBookById(bookId);
        return bookInfo;
    }

    @RequestMapping(value = "/updateBook", produces = "application/json")
    public String updateBook(BookInfo bookInfo){
        log.info("更新图书, bookInfo: {}", bookInfo);
        try {
            Integer result = bookService.updateBook(bookInfo);
            if (result>0){
                return "";
            }
            return "图书更新失败";
        }catch (Exception e){
            log.error("更新图书失败, e:", e);
            return "数据库操作失败";
        }
    }

    @RequestMapping(value = "/deleteBook", produces = "application/json")
    public String deleteBook(Integer bookId){
        log.info("删除图书, bookId: {}", bookId);
        try {
            BookInfo bookInfo = new BookInfo();
            bookInfo.setId(bookId);
            bookInfo.setStatus(BookStatusEnum.DELETED.getCode());
            Integer result = bookService.updateBook(bookInfo);
            if (result>0){
                return "";
            }
            return "图书删除失败";
        }catch (Exception e){
            log.error("删除图书失败, e:", e);
            return "数据库操作失败";
        }
    }

    /**
     * 批量删除图书
     * @param ids
     * @return
     */
    @RequestMapping("/batchDeleteBook")
    public Boolean batchDeleteBook(@RequestParam List<Integer> ids){
        log.info("批量删除图书, ids:{}", ids);
        try {
            //执行SQL
            bookService.batchDelete(ids);
            return true;
        }catch (Exception e){
            log.error("批量删除图书失败, ids:{}", ids);
        }
        return false;

    }

}
